23 of 23 Permanent Java Engineer Jobs in Belfast

Java Engineer – Cloud (GCP or AWS) | Scalable Systems | Product Environment Are you a Java engineer who thrives on building scalable, cloud-native systems? Want to make a tangible impact on modern product development in a fast-moving team? My client is looking for a Java Engineer with strong experience in either Google Cloud Platform (GCP) or Amazon Web Services (AWS) to join their high-performing engineering team. You’ll be developing robust, distributed systems and contributing to cloud infrastructure in a product-focused environment. Key Responsibilities: Design, develop, and deploy high-performance backend … testing, and resilience of services. Take ownership of cloud infrastructure components using GCP or AWS services. Essential Skills and Experience: Strong commercial experience with Java (Java 11 or newer) . Hands-on experience with GCP or AWS , including services such as Cloud Run, Pub/Sub, BigQuery, S3 More ❯

Java Engineer – Cloud (GCP or AWS) | Scalable Systems | Product Environment Are you a Java engineer who thrives on building scalable, cloud-native systems? Want to make a tangible impact on modern product development in a fast-moving team? My client is looking for a Java Engineer with strong experience in either Google Cloud Platform (GCP) or Amazon Web Services (AWS) to join their high-performing engineering team. You’ll be developing robust, distributed systems and contributing to cloud infrastructure in a product-focused environment. Key Responsibilities: Design, develop, and deploy high-performance backend … testing, and resilience of services. Take ownership of cloud infrastructure components using GCP or AWS services. Essential Skills and Experience: Strong commercial experience with Java (Java 11 or newer) . Hands-on experience with GCP or AWS , including services such as Cloud Run, Pub/Sub, BigQuery, S3 More ❯

Senior Java Engineer – Core Java, Algo, Distributed Systems Location: Belfast – 2/3 days per week needs to be possible (only considering candidates in NI) Type: Contract Industry: Investment Banking Duration: ASAP – long term (12 months to start with extensions) We’re seeking Senior/Lead Java … systems that support trading across Equity Swaps, Delta One, and Prime Brokerage. While low-latency expertise is not essential, a deep command of Core Java and algorithmic/data structure proficiency is critical to succeed in this complex and performance-sensitive environment. Key Responsibilities: Design and enhance trading engines … microservices architecture , and contribute to distributed system designs. Lead database migrations from legacy systems (e.g., Sybase , DB2 ) to modern platforms. Required Skills: Strong Core Java expertise, with a focus on performance tuning and optimisation . Solid understanding of algorithms , data structures , and concurrent distributed environments . Proven experience with More ❯

Senior Java Engineer – Core Java, Algo, Distributed Systems Location: Belfast – 2/3 days per week needs to be possible (only considering candidates in NI) Type: Contract Industry: Investment Banking Duration: ASAP – long term (12 months to start with extensions) We’re seeking Senior/Lead Java … systems that support trading across Equity Swaps, Delta One, and Prime Brokerage. While low-latency expertise is not essential, a deep command of Core Java and algorithmic/data structure proficiency is critical to succeed in this complex and performance-sensitive environment. Key Responsibilities: Design and enhance trading engines … microservices architecture , and contribute to distributed system designs. Lead database migrations from legacy systems (e.g., Sybase , DB2 ) to modern platforms. Required Skills: Strong Core Java expertise, with a focus on performance tuning and optimisation . Solid understanding of algorithms , data structures , and concurrent distributed environments . Proven experience with More ❯

Senior Java Engineer – Core Java, Algo, Distributed Systems Location: Belfast – 2/3 days per week needs to be possible (only considering candidates in NI) Type: Contract Industry: Investment Banking Duration: ASAP – long term (12 months to start with extensions) We’re seeking Senior/Lead Java … systems that support trading across Equity Swaps, Delta One, and Prime Brokerage. While low-latency expertise is not essential, a deep command of Core Java and algorithmic/data structure proficiency is critical to succeed in this complex and performance-sensitive environment. Key Responsibilities: Design and enhance trading engines … microservices architecture , and contribute to distributed system designs. Lead database migrations from legacy systems (e.g., Sybase , DB2 ) to modern platforms. Required Skills: Strong Core Java expertise, with a focus on performance tuning and optimisation . Solid understanding of algorithms , data structures , and concurrent distributed environments . Proven experience with More ❯

whose innovative products are making a true impact across multiple industries. As the business continues to scale, they're now looking for a Senior Java Engineer to take a key role in shaping the evolution of their core platform. This is the perfect opportunity for a Senior Software … Engineer with previous exposure to design and architecture to step up and take on a more senior role in a scaling software engineering team. You'll be joining a small but high-performing, collaborative engineering team, contributing not just code but also technical direction, architectural leadership, and mentorship to … What You'll Be Doing Take ownership of a key function within the company's core software platform, designing and architecting scalable, cloud-native Java applications. Lead by example in adopting best practices and modern development approaches. Collaborate across disciplines, particularly with product teams and hardware engineering, to deliver More ❯

whose innovative products are making a true impact across multiple industries. As the business continues to scale, they're now looking for a Senior Java Engineer to take a key role in shaping the evolution of their core platform. This is the perfect opportunity for a Senior Software … Engineer with previous exposure to design and architecture to step up and take on a more senior role in a scaling software engineering team. You'll be joining a small but high-performing, collaborative engineering team, contributing not just code but also technical direction, architectural leadership, and mentorship to … What You'll Be Doing Take ownership of a key function within the company's core software platform, designing and architecting scalable, cloud-native Java applications. Lead by example in adopting best practices and modern development approaches. Collaborate across disciplines, particularly with product teams and hardware engineering, to deliver More ❯

whose innovative products are making a true impact across multiple industries. As the business continues to scale, they're now looking for a Senior Java Engineer to take a key role in shaping the evolution of their core platform. This is the perfect opportunity for a Senior Software … Engineer with previous exposure to design and architecture to step up and take on a more senior role in a scaling software engineering team. You'll be joining a small but high-performing, collaborative engineering team, contributing not just code but also technical direction, architectural leadership, and mentorship to … What You'll Be Doing Take ownership of a key function within the company's core software platform, designing and architecting scalable, cloud-native Java applications. Lead by example in adopting best practices and modern development approaches. Collaborate across disciplines, particularly with product teams and hardware engineering, to deliver More ❯

whose innovative products are making a true impact across multiple industries. As the business continues to scale, they're now looking for a Senior Java Engineer to take a key role in shaping the evolution of their core platform. This is the perfect opportunity for a Senior Software … Engineer with previous exposure to design and architecture to step up and take on a more senior role in a scaling software engineering team. You'll be joining a small but high-performing, collaborative engineering team, contributing not just code but also technical direction, architectural leadership, and mentorship to … What You'll Be Doing Take ownership of a key function within the company's core software platform, designing and architecting scalable, cloud-native Java applications. Lead by example in adopting best practices and modern development approaches. Collaborate across disciplines, particularly with product teams and hardware engineering, to deliver More ❯

The Staff Software Engineer on the Vulnerability Coverage team will help set technical direction for delivering accurate vulnerability detections to our customers in a timely manner. They will serve as an expert and owner for a portion of the overall coverage portfolio, participate in architectural discussions and successfully deliver … addition to hands-on development, they will work closely with the product management team, mentor engineers and contribute to roadmap planning. The Staff Software Engineer's role is responsible for providing technical leadership and does not have people-management responsibilities. About the Team The Vulnerability Coverage team is responsible … with the expected level of accuracy and quality. Vulnerability Coverage team members develop a broad set of skills, ranging from technologies such as Python, Java, Ruby, AWS and Kubernetes to security domain expertise and system-level knowledge. The Vulnerability Coverage team is often considered the lifeblood of many Rapid7 More ❯

As a Software Engineer, you will be part of our VPC & Domestic Processing team in Payment Processing to help design, enhance and build our transactional processing system in an agile development environment. You will work with colleagues who will support and challenge you daily. You will be part of … work on a highly scalable system which processes around 400+ tps 24/7. Some of Your Key Responsibilities Essential Functions As a Software Engineer you will help design, enhance, and build next generation fraud detection platforms in an agile development environment. You will play part of multiple teams … members to timely releases. Responsibilities include technical analysis and creation of conceptual approach. Develop code that complies with design specifications and meets security and Java best practices. Coding must adhere security standards, be easily maintainable and be high performant. Participate in design and code review sessions as appropriate to More ❯

offering opportunities to learn from peers in person, while also providing the flexibility needed for a meaningful work-life balance. Being a Lead Software Engineer at iManage Means You are a passionate engineer who will play a critical role in building our Security Policy Manager product in an … agile environment. As a Lead Software Engineer, you'll play a key role in leading hands-on architecture, development, and deliverables across a team of 5-6 engineers. You'll be passionate about mentoring engineers through best-practices and getting the best out of them. You'll be collaborating … directly with product teams and technical specialists to deliver the roadmap, drive engineering initiatives and develop key features. Our technology stack Java (17/21) SQL (Microsoft SQL Server) Microsoft Azure Kubernetes Docker iM Responsible For Taking ownership and leading a project through the full SDLC and ensure successful More ❯

low latency pre-trade credit component we deliver a performant, cost effective solution to your eFX needs. Role Lucera Financial Infrastructures is hiring a Java Software Engineer for our Belfast office to work on our core infrastructure as a service platform, used by some of the top names … pick up new technologies Background in taking products from design right through to delivery Strong sense of writing quality maintainable code Commercial experience in Java (8+) Use of Micronaut/Spring (or equivalent) Frameworks Developing against Relational and NoSQL Database (MongoDB, Postgres etc) Experience with unit testing methodologies and More ❯

low latency pre-trade credit component we deliver a performant, cost effective solution to your eFX needs. Role Lucera Financial Infrastructures is hiring a Java Software Engineer for our Belfast office to work on our core infrastructure as a service platform, used by some of the top names … pick up new technologies Background in taking products from design right through to delivery Strong sense of writing quality maintainable code Commercial experience in Java (8+) Use of Micronaut/Spring (or equivalent) Frameworks Developing against Relational and NoSQL Database (MongoDB, Postgres etc) Experience with unit testing methodologies and More ❯

low latency pre-trade credit component we deliver a performant, cost effective solution to your eFX needs. Role Lucera Financial Infrastructures is hiring a Java Software Engineer for our Belfast office to work on our core infrastructure as a service platform, used by some of the top names … pick up new technologies Background in taking products from design right through to delivery Strong sense of writing quality maintainable code Commercial experience in Java (8+) Use of Micronaut/Spring (or equivalent) Frameworks Developing against Relational and NoSQL Database (MongoDB, Postgres etc) Experience with unit testing methodologies and More ❯

low latency pre-trade credit component we deliver a performant, cost effective solution to your eFX needs. Role Lucera Financial Infrastructures is hiring a Java Software Engineer for our Belfast office to work on our core infrastructure as a service platform, used by some of the top names … pick up new technologies Background in taking products from design right through to delivery Strong sense of writing quality maintainable code Commercial experience in Java (8+) Use of Micronaut/Spring (or equivalent) Frameworks Developing against Relational and NoSQL Database (MongoDB, Postgres etc) Experience with unit testing methodologies and More ❯

Senior Backend Software Engineer Up to £70,000 + 15% Bonus + Stock Options Join a fast-growing tech company that's reimagining how modern marketplaces are built. We're looking for a hands-on Senior Backend Engineer to help evolve a highly scalable platform powered by microservices … world problems. Help shape engineering practices and mentor junior developers. Collaborate with a remote-first, high-performing team across time zones. Tech Stack: Kotlin, Java (or other JVM), Spring Boot, GCP, Kubernetes, Docker, Kafka, PostgreSQL, MongoDB, CI/CD pipelines. Experience in Go, Python, or C# also welcomed. What More ❯

Senior Backend Software Engineer Up to £70,000 + 15% Bonus + Stock Options Join a fast-growing tech company that's reimagining how modern marketplaces are built. We're looking for a hands-on Senior Backend Engineer to help evolve a highly scalable platform powered by microservices … world problems. Help shape engineering practices and mentor junior developers. Collaborate with a remote-first, high-performing team across time zones. Tech Stack: Kotlin, Java (or other JVM), Spring Boot, GCP, Kubernetes, Docker, Kafka, PostgreSQL, MongoDB, CI/CD pipelines. Experience in Go, Python, or C# also welcomed. What More ❯

Senior Backend Software Engineer Up to £70,000 + 15% Bonus + Stock Options Join a fast-growing tech company that's reimagining how modern marketplaces are built. We're looking for a hands-on Senior Backend Engineer to help evolve a highly scalable platform powered by microservices … world problems. Help shape engineering practices and mentor junior developers. Collaborate with a remote-first, high-performing team across time zones. Tech Stack: Kotlin, Java (or other JVM), Spring Boot, GCP, Kubernetes, Docker, Kafka, PostgreSQL, MongoDB, CI/CD pipelines. Experience in Go, Python, or C# also welcomed. What More ❯

digital product environment where your skills will directly impact high-quality solutions for well-known clients. The client I'm partnered with are hiring Java Engineers who thrive in collaborative teams and love solving technical challenges. What You’ll Do: Build scalable, high-performance microservices using Java & Spring … cross-functional teams on technical design Work with modern tooling (CI/CD, containers, AWS, automated testing) What You’ll Bring: 3+ years of Java experience (Spring Boot) Some grasp of cloud services (AWS preferred) Experience in areas like TDD, performance testing, or Kubernetes A proactive mindset and passion More ❯

digital product environment where your skills will directly impact high-quality solutions for well-known clients. The client I'm partnered with are hiring Java Engineers who thrive in collaborative teams and love solving technical challenges. What You’ll Do: Build scalable, high-performance microservices using Java & Spring … cross-functional teams on technical design Work with modern tooling (CI/CD, containers, AWS, automated testing) What You’ll Bring: 3+ years of Java experience (Spring Boot) Some grasp of cloud services (AWS preferred) Experience in areas like TDD, performance testing, or Kubernetes A proactive mindset and passion More ❯

digital product environment where your skills will directly impact high-quality solutions for well-known clients. The client I'm partnered with are hiring Java Engineers who thrive in collaborative teams and love solving technical challenges. What You’ll Do: Build scalable, high-performance microservices using Java & Spring … cross-functional teams on technical design Work with modern tooling (CI/CD, containers, AWS, automated testing) What You’ll Bring: 3+ years of Java experience (Spring Boot) Some grasp of cloud services (AWS preferred) Experience in areas like TDD, performance testing, or Kubernetes A proactive mindset and passion More ❯

skills, qualifications and experience that a successful applicant will need are listed in the following description. The client I'm partnered with are hiring Java Engineers who thrive in collaborative teams and love solving technical challenges. What You’ll Do: Build scalable, high-performance microservices using Java & Spring … cross-functional teams on technical design Work with modern tooling (CI/CD, containers, AWS, automated testing) What You’ll Bring: 3+ years of Java experience (Spring Boot) Some grasp of cloud services (AWS preferred) Experience in areas like TDD, performance testing, or Kubernetes A proactive mindset and passion More ❯